TRF250-145-RA-B0.5-2

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PTC Resettable Fuses are components used in electrical circuits to protect circuits from overcurrent or overheating. The TRF250-145-RA-B0.5-2 is a PTC Resettable Fuses which is designed to provide overcurrent protection and thermal protection for a wide range of applications. The TRF250-145-RA-B0.5-2 features a single-pole fused element and an LED indicator to indicate when the fuse is tripped.

Application Field

The TRF250-145-RA-B0.5-2 is commonly used in a variety of applications such as automotive systems, consumer electronics, medical devices, and industrial machinery. It is capable of handling up to 30A at and is suitable for both AC and DC applications. It can be used in a wide variety of applications, thanks to its UL94V-0 recognition. In addition, the TRF250-145-RA-B0.5-2 is also suitable for a wide range of operating temperatures, ranging from -55°C to +150°C.

Working Principle

The TRF250-145-RA-B0.5-2 works by passing a positive temperature coefficient (PTC) material through its fuse body. This PTC material is designed to heat up when current passes through it, which will results in a rapid increase in resistance. This will be monitored by the LED indicator and when the current exceeds the set limit, the LED will light up to indicate that the fuse has tripped. Once the current is reduced to a normal level, the fuse will automatically reset itself. In addition, the TRF250-145-RA-B0.5-2 also features a reverse-blocking capability to ensure the current is not “back-fed” to the power source.

Advantages

The TRF250-145-RA-B0.5-2 offers a wide range of advantages, including its easy installation, low cost, and high performance. Its low profile design enables it to fit in tight applications, making it ideal for automotive systems. In addition, it is capable of providing thermal protection in addition to overcurrent protection, which makes it suitable for a wide range of applications. Furthermore, the TRF250-145-RA-B0.5-2 is RoHS compliant, making it an eco-friendly option as well.

Disadvantages

The TRF250-145-RA-B0.5-2 is not without its potential drawbacks. The LED indicator may not be visible in certain applications, making it difficult to determine when the fuse has tripped. In addition, the TRF250-145-RA-B0.5-2 may not be suitable for very high current applications.

Conclusion

The TRF250-145-RA-B0.5-2 is a reliable and cost-effective PTC Resettable Fuse designed for a wide range of applications. It is capable of providing overcurrent and thermal protection, and its design makes it easy to install in tight applications. It is also RoHS compliant, making it an eco-friendly option. However, it may not be suitable for very high current applications and its LED indicator may not be visible in certain applications.

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